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Senior Staff Data Scientist

Montreal, Canada💼 Full-time🗓 2026-09-09 → 2026-09-25

Core

Designing and developing machine learning and AI approaches to identify anomalous activity and security risks for Zendesk's AI features.

Role type

Staff Data Scientist (AI Security)

Builds

AI Security evaluation platform, detection models, and prevention strategies for customer safety.

Domain

AI Security, Fraud Detection, Anomaly Detection

Deliverable

production ML models

Required skills

Anomaly detection techniques, Statistical modeling, Large-scale data processing, Distributed computing (Spark, Snowflake), Python, SQL, AI-assisted programming, Unbalanced dataset handling, Sparsity management

Preferred skills

AI Red Teaming, Cybersecurity concepts, ML model monitoring in production, Guardrails and firewall models

Responsibilities

Run and develop AI Security evaluation platform, Analyze behavioral data to identify abuse patterns, Develop detection models using offline data, Improve spam detection accuracy, Collaborate on prevention strategies, Mentor technical teams, Stay current on AI Security trends

Seniority

Staff, technical leadership & mentorship

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